The 15-Game

Ben Sparks explores hidden depths of a seemingly simple game.

More on Jane Street's AMP program at https://jane-st.co/Numberphile-AMP-2026 (sponsor)

An extra snippet on Numberphile2: https://youtu.be/lz2POMYd4YM

And a 4.5-minute longer version of this video can be watched by Patrons: https://www.patreon.com/posts/150089653

Ben Sparks own website (you can book him for talks and training, etc): https://www.bensparks.co.uk/

More Ben on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q

The game can be played without the grid at https://15game.bensparks.co.uk/ and can be played with the magic square grid at https://15game.bensparks.co.uk/gameTTT.html